Depends on use case. If you're fine with a lower malfunction speed of 3.5 ish m/s (correct me if I'm wrong), then I'd go for a G100S, if not, go for the Rival 100.

Rival 100 feels as if it has quite a bit of prediction and is frankly only OK at 500 dpi. Shape is great though, imo one of the most pleasant shapes I've ever held, the right mix between FK2 and Sensei.Edited by CorruptBE - 7/9/16 at 6:55pm

800CPI and 2.2 ig sense ...
I think you wouldnt hit it ...
...
I'm playing ~1.2-1.4 ingame @400/500 CPI ... and dont hit it ... at the moment I dont use a G100s , but I was using it ...
but maybe you can wait for the new next Logitech mouse , it looks like a g100s + G303 ... 3366 Sensor ??? ...http://www.overclock.net/t/1604070/skadoodle-and-semphis-new-mouseEdited by Klopfer - 7/9/16 at 10:19pm